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Soil Resistivity Test, ASTM G57

Soil Resistivity Test

Soil Resistivity Test, ASTM G57

Soil resistance to electric current is measured by Wenner Four-Electrode Method. It is crucial for designing systems that rely on current flowing through the soil. The most widespread method for determining soil resistivity is the Wenner four-pin method.

Evaluation and control of corrosion of underground structures are accomplished by measurement of soil resistivity. Both the assessment of anticipated corrosion potential and the design of cathodic protection systems involve soil resistivity. The number of measurements required to provide a sufficiently representative characterization of the soil environment to which the entire buried structure would be exposed is a crucial design parameter for cathodic protection systems.

Soil resistivity test is carried out based on:

  • ASTM G57: Standard Test Method for Measurement of Soil Resistivity Using the Wenner Four-Electrode Method

Terra Testing, LLC conducts testing for both in situ and samples removed from the ground in accordance with ASTM G57, and in collaboration with engineers throughout the design phase.

Please contact Ajit Govindan ( at 806-777-0786 to discuss your resistivity testing needs.